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DEBT - Components of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 29, 2025	Sep. 30, 2024	Mar. 30, 2024	Aug. 13, 2021	Mar. 17, 2021	Oct. 22, 2019	Dec. 15, 2016
Debt Instrument [Line Items]
Total debt	$ 2,563.1	$ 2,242.8	$ 2,837.2
Less current portions	54.6	52.6	57.8
Long-term debt	2,493.2	2,174.2	2,760.5
Credit Facilities | Revolving loans
Debt Instrument [Line Items]
Total debt	345.0	0.0	314.2
Credit Facilities | Term loans
Debt Instrument [Line Items]
Total debt	$ 600.0	$ 625.0	$ 900.0
Senior Notes | 4.000% Senior Notes Due 2031
Debt Instrument [Line Items]
Interest rate of debt (percentage)	4.00%	4.00%	4.00%		4.00%
Total debt	$ 500.0	$ 500.0	$ 500.0
Senior Notes | 4.375% Senior Notes Due 2032
Debt Instrument [Line Items]
Interest rate of debt (percentage)	4.375%	4.375%	4.375%	4.375%
Total debt	$ 400.0	$ 400.0	$ 400.0
Senior Notes | 4.500% Senior Notes Due 2029
Debt Instrument [Line Items]
Interest rate of debt (percentage)	4.50%	4.50%	4.50%			4.50%
Total debt	$ 450.0	$ 450.0	$ 450.0
Senior Notes | 5.250% Senior Notes Due 2026
Debt Instrument [Line Items]
Interest rate of debt (percentage)	5.25%	5.25%	5.25%				5.25%
Total debt	$ 250.0	$ 250.0	$ 250.0
Finance lease obligations
Debt Instrument [Line Items]
Total debt	15.6	17.8	17.5
Other
Debt Instrument [Line Items]
Total debt	2.5	0.0	5.5
Long-term debt
Debt Instrument [Line Items]
Less unamortized debt issuance costs	$ 15.3	$ 16.0	$ 18.9

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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